Everything you need in a mouse, too.
The OS X Keyboard is also available as a Combo Pack that includes
a mouse! The OS X Mouse has a scroll wheel for quick, smooth scrolling
through documents and web pages, a 2nd mouse button for contextual
menus, and a precision optical sensor for accurate tracking.

Even better with Key Maestro.
The OS X Keyboard works even better with Key Maestro automation software.
Key Maestro lets you set up your own custom keyboard commands that
can be triggered much faster using the OS X Keyboard's extra Control
key. You can create new menu shortcuts, automate frequently-used
commands, control iTunes or other applications running in the background,
and much much more.

Save your money!
Buy an OS X Keyboard & Mouse for much less
than Apple's Keyboard and Mouse.

"Matias has done something that would seem obvious except
for the fact that no one has done it before: they printed
the Option- and Shift-Option characters on every keycap. It's
a brilliant move; no longer do you need a software utility
to look up the degree character when you can just glance at
the keyboard and see that it's Shift-Option-8."